Bearing for carpet-sweepers.



No. 7|7,45s. v Patented Dec. 30. I902. J. w. S'HANAHAN & F.YC. MASON.BEARING FUR CARPET SWEEPERS.

(Application filed Mar. 11, 1901.]

(No Model.)

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ATENT Prion.

JOHN W. SHANAHAN AND FRANCIS C. MASON, OF GRAND RAPIDS, MICHI- GAN,ASSIGNORS TO BISSELL CARPET SVVEEPER COMPANY, OF GRAND RAPIDS, MICHIGAN.

. BEARING FOR CARPET-SWEEPERS.

SPECIFICATION forming part of Letters Patent No. 717,458, dated December30, 1902. Application filed March 11, 1901. Serial No. 50,716. (Nomodel.)

To (tZZ whom it may concern:

Be it known that we, JOHN W. SHANAHAN and FRANCIS G. MASON, citizens ofthe United States, residing at Grand Rapids, in the county of Kent andState of Michigan, have invented new and useful Improvements in Bearingsfor Carpet-Sweepers, of which the following is a specification.

This invention relates to certain new and to useful improvements inbearings foncarpetsweepers; and the object thereof is to provide abearing which will prevent the brush roller from winding ravelings,hair, &c., and which will also prevent the introduction of :5 dust intothe bearing.

The invention consists of an outwardly-facing cup on the brush-rollerhaving an annular rim or flange around its outer edge, aninwardly-facing stationary cup on the case of the carpet-sweeper havingan annular rim or flange around its outer edge concentric to the rim orflange on said outwardly-facing cup, one of said cups fitted Within therim or flange on that of the other, and means cooperating with each ofsaid cups to form a bearing between the same.

The invention also consists of an outwardlyextending revolving cupcarried by the brushroller, an inwardly-extending stationary cup 50carried by the case of the carpet-sweeper,'the former extending Withinthe latter, a pintle secured to the case of the carpet-sweeper andextending through both of the said cups, balls surrounding said pintleWithin the outwardly-extending cup, and a plate mounted within theoutwardly-extending cup for retaining the balls in position.

The invention further consists of the novel combination and arrangementof parts here- 40 inaftermorespecificallydescribed,illustrated in theaccompanying drawings, and particularly pointed out in the claimhereunto appended.

In describing the invention in detail reference is had to theaccompanying drawings,

forminga partof this specification,and wherein like letters of referenceindicate corresponding parts throughout the several views, and in Which-5 Figure 1 denotes a plan view, partly in horizontal section, of acarpet-sweeper, showing our improved bearings therefor. Figs. 2 and 2show a side elevation and bottom plan View, respectively, of theinwardly-extending cup carried by the sweeper-case; and Figs. 3 and 3illustrate like views of the outwardlyextending cup carried by thetbrushroller.

Referring to the drawings by reference-letters, A denotes theinwardly-extending cup, which is substantially annular in contour and issuitably secured to the inner face of the ordinary elastic cross-bar Eof the sweeper- 'case.

The reference-letter B indicates the outwardly-extending cup, which isusually secured to the pulley G on the,brush-roller H. Theoutwardly-extending cup 13 has its inner portion formed substantially ofthe shape of a truncated cone and is seated or secured within a similarrecess or cavity in the outer 7o face of the pulley G. At the outer endof the truncated portion of the outwardly-extending cup B the latter isformed with an annular projecting flange B, lying in close contact withthe outer face of the pulley G. This flange B terminates in anoutwardly-extending rim B The latter extends within the cup A.

The bottom of the cup A is formed with an opening, through which extendsafast-ening means A for securing the pintle D in position. This pintle Dis substantially cone shape,and its inner end extends into the openingD, formed in the bottom of the cup B, and engages the pulley G, asshown.

Mounted within the truncated portion of the cup G andsurrounding thepintle D are the balls F, which are retained in position by means of theannular plate C, arranged within the cup B and engaging the flange B.This plate 0 is formed with an opening, so that the pintle D may extendtherethrough, as well as arresting the outward movement of the plate toprevent the dislodgment of the balls F.

The reference-letter I denotes the sweepercase, P the pans, and W thedriving-wheels, which may be supported in any desirable manner.

The cups A and B are made, preferably, of

metal, and the latter is fitted within the former as closely aspossible, but not close enough to prevent the cup carried by the pulleyof the brush-roller from revolving readily within the cup A Withoutcoming into contact therewith. The plate Oalso prevents the introductionof dirt or ravelings to the truncated portion of the cup 13. The rims ofthe cups also prevent theintroduction of ravelings and dirt to thebearings.

In the example of our invention illustrated in the drawings We haveshown the cupB eX- tending within the cup A. It will be evident that thecup A may extend within the cup B,

of the cup on the rotatable part and adapted to surround the saidpintle, and a plate mounted Within the cup upon the rotatable part andadapted to retain the balls in the truncated portion.

In testimony whereof we have hereunto set our hands in presence of twosubscribing wit- IIGSSGS.

JOHN W. SHANAHAN. FRANCIS O. MASON. Witnesses:

FRED. lVICR. DEANE, JAMES B. DAVIES.

